The Analysis And Research Of Signal Interference In The Satellite Broadcasting Band

spectrum has become a very important resource. Radio applications more and more widely. In order to improve the growing tensions of the radio frequency signal and supply and demand, and how to minimize the satellite communication, satellite broadcasting, aviation navigation and radio business from malicious or harmful adverse interference, stable people life and national security. Therefore, the radio monitoring in today’s information age is particularly important. However, the wide application of various radio signal generated in the management is very difficult. In the wide frequency band above the signal processing is mainly used modulation patterns and parameters to control. These signal identification and monitoring of effective control is our present multiple fields are hot research. How to recognize the modulation way is to the other communications eavesdropping and interference essential premise condition. As long as the master signal modulation types, we can calculate the modulation parameters, then we can want to reconnaissance object for a purpose of the deep reconnaissance and investigation. Modulation recognition technology used not only for life. In the military also occupied a very important position. In electronic warfare signal modulation mode can be effective on the enemy’s communication signal interference and interference algorithm. Not only can break through the enemy’s communication, monitor and control, can effectively ensure and friendly communication security. Thus realizing the electronic war. The radio signal demodulation and signal interference in different electromagnetic environment in the signal of in-depth research, makes radio monitoring effect.This study is in the city, located in the complex electromagnetic environment, ntercepted interference signal, and carries on the profound analysis, to help us to explore a new identification of interference signal modulation method, at the same time to signal the new method of modulation recognition using contrast experimental verification is performed.This article first introduces the writingbackground, content and significance, research methods and thesis structure; followed by the radio communication signals of the most original and visual basic characteristics, and how to extract these features, so that we in the radio signal further observation and study, come to us to get the characteristic parameters were briefly analyzed; once again introduced a radio communication signal automatic identification and preconditioning techniques, mainly introduces the radio signal monitoring technology, pattern recognition, radio communication signal preprocessing and objective function based on fuzzy cluster analysis; finally introduced the radio communication interference signal preprocessing methods, measures of noise reduction and classification algorithms, and through comparison of experimental, draw the actual data, statistics and analysis.